ensure left expression is processed before right in assignments (IDEA-140772)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting6/InitializedBeforeUsed.java

@@ -0,0 +1,7 @@
+class Test {
+  public static void main(String[] args) {
+    int i;
+    int[] iA = {10,20};
+    iA[<error descr="Variable 'i' might not have been initialized">i</error>] = i = 30;
+  }
+}